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NC-2009 EAp2:Minimum Energy Performance

Exceptional calculation for process load

What would be the process of an exceptional calculation to prove reduction in process office equipment density for an office building? Could the baseline case be based on the current density at another but similar facility (belonging to the same owner) which could be reduced thanks to the use of Energy Star equipment or other efficiency measures? Should a CIR be submitted to get approval for such an approach? Thanks in advance.

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Marcus Sheffer
LEED Fellow
7group / Energy Opportunities
LEEDuser Expert
4454 thumbs up

Wed, 10/05/2016 - 19:26

There is already an approved method for claiming this savings. No CIR needed. This would be similar to how you claim savings for Energy Star appliances in multi-family residential projects. The Baseline should be determined using the Energy Star calculator for the specific equipment for which you are pursuing savings. The Proposed is then just modeled as designed. Make sure you have documentation to ensure that the equipment will be or has been purchased. Then account for the rest of the process loads in the usual manner. Don't just use a W/sf value as it will not be accurate enough. Simply model all the equipment directly in the appropriate spaces.

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